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The Eastern Tiger Swallowtail: Everything You'd Want to Know - and More!

Updated: May 31

Eastern Tiger Swallowtail for Dahlonega Butterfly Farm

The Eastern Tiger Swallowtail, scientifically known as Papilio glaucus, is a magnificent butterfly species found in North America. With its striking black stripes and vibrant yellow wings, this enchanting creature never fails to capture the attention of both nature enthusiasts and casual observers alike. But there is more to the Eastern Tiger Swallowtail than meets the eye. Delving into the world of this captivating butterfly reveals a tapestry of amazing facts that illuminate its fascinating biology, behavior, and ecological significance. Join us on a journey through a curated list of astonishing insights, as we uncover the wonders of the Eastern Tiger Swallowtail butterfly.

Quick Guide:

Interesting Facts About The Eastern Tiger Swallowtail

Predators of the Swallowtail Butterfly

Host and Nectar Plants that the Eastern Tiger Swallowtail L O V E

Eastern Tiger Swallowtails are Right Outside Your Door

Eastern Tiger Swallowtail Caterpillar for the Dahlonega Butterfly Farm

Interesting Facts About The Eastern Tiger Swallowtail

1. The Eastern Tiger Swallowtail is one of the largest and most commonly seen butterflies in North America.

2. Male Eastern Tiger Swallowtails are typically yellow with four black "tiger stripes," while females can be either yellow or black, with more muted stripes.

3. The wingspan of the Eastern Tiger Swallowtail can range from 3.5 to 6 inches.

4. Eastern Tiger Swallowtails are often found near water, such as streams, rivers, and ponds.

5. The larvae of the Eastern Tiger Swallowtail are known as "saddleback caterpillars" due to the prominent hump on their backs.

6. Eastern Tiger Swallowtail caterpillars are known to mimic bird droppings as a defense mechanism against predators.

7. Adult Eastern Tiger Swallowtails feed on nectar from a variety of flowers, including milkweed, thistles, and lilacs.

8. The Eastern Tiger Swallowtail is found in a wide range of habitats, including forests, fields, and suburban gardens.

9. This butterfly is known to migrate in some areas, with populations in the southern United States moving northward in the spring and summer.

10. The Eastern Tiger Swallowtail is the state butterfly of Georgia, and it is also the official state butterfly of Virginia.

Eastern Tiger Swallowtail at the Dahlonega Butterfly Farm Conservatory

Predators of the Swallowtail Butterfly

The Eastern Tiger Swallowtail, like any other butterfly species, faces a variety of predators throughout its life cycle. As caterpillars, they are vulnerable to predation by birds, such as sparrows, jays, and warblers, which actively seek out and feed on them. Additionally, parasitic wasps, such as the Braconid wasp, lay their eggs inside the caterpillars, eventually leading to their demise.

When they transform into chrysalides, Eastern Tiger Swallowtails are less susceptible to predation due to their protective outer casing. However, there are still risks, including potential attacks by ants, spiders, and other small invertebrates that may try to break into the chrysalis.

As adult butterflies, Eastern Tiger Swallowtails are often targeted by birds, dragonflies, and predatory insects, including mantises. Birds, in particular, are known to pursue butterflies in flight, making them vulnerable to capture.

Despite these threats, Eastern Tiger Swallowtails have evolved various survival strategies, including their distinctive wing patterns and colors, which help to confuse and deter predators. Their flight agility and ability to blend into their surroundings also provide them with an advantage in avoiding detection.

In nature, predator-prey relationships are complex and dynamic. While the Eastern Tiger Swallowtail faces its share of threats, it continues to thrive due to its adaptability and the ongoing interplay between predators and their evolving defense mechanisms.

Eastern Tiger Swallowtail Outdoors Dahlonega Butterfly Farm

Host and Nectar Plants that the Eastern Tiger Swallowtail


The Eastern Tiger Swallowtail butterfly has several host plants that serve as food sources for its caterpillars. These plants are essential for the survival and development of the species. The primary host plants for the Eastern Tiger Swallowtail include:

Wild Cherry Trees (Prunus species): Eastern Tiger Swallowtails commonly lay their eggs on various species of wild cherry trees, including black cherry (Prunus serotina) and chokecherry (Prunus virginiana).

Tulip Poplar (Liriodendron tulipifera): This tall and majestic tree is another favored host plant for Eastern Tiger Swallowtails. The caterpillars feed on the leaves of tulip poplar during their development.

Ash Trees (Fraxinus species): Certain species of ash trees, such as white ash (Fraxinus americana) and green ash (Fraxinus pennsylvanica), provide food for Eastern Tiger Swallowtail caterpillars.

Sweetbay Magnolia (Magnolia virginiana): This evergreen tree or shrub is also utilized as a host plant by Eastern Tiger Swallowtails. The caterpillars feed on its leaves, contributing to their growth and development.

Willows (Salix species): Several species of willow trees, including black willow (Salix nigra) and weeping willow (Salix babylonica), serve as host plants for Eastern Tiger Swallowtails.


Eastern Tiger Swallowtail butterflies in Georgia are attracted to a wide range of native nectar plants that provide them with the essential sustenance they need as adult butterflies. Here are some native nectar plants commonly loved by Eastern Tiger Swallowtails in Georgia:

Butterfly Bush (Buddleja species): These flowering shrubs produce clusters of fragrant flowers that are highly attractive to butterflies, including Eastern Tiger Swallowtails.

Purple Coneflower (Echinacea purpurea): This native perennial plant bears distinctive purple flowers with a cone-shaped center, which serves as a rich nectar source for many butterfly species, including Eastern Tiger Swallowtails.

Joe-Pye Weed (Eutrochium/Eupatorium species): These tall, herbaceous plants produce clusters of pink or purple flowers that bloom in late summer and attract a variety of butterflies, including Eastern Tiger Swallowtails.

Milkweed (Asclepias species): Asclepias plants, such as Common Milkweed (Asclepias syriaca) and Butterfly Milkweed (Asclepias tuberosa), serve as important nectar sources for various butterfly species, including Eastern Tiger Swallowtails. Additionally, Milkweed is a host plant for Monarch butterflies.

Purple Verbena (Verbena bonariensis): This perennial plant displays clusters of small, purple flowers atop tall, slender stems, creating a beautiful and enticing nectar source for Eastern Tiger Swallowtails and other butterflies.

Black-eyed Susan (Rudbeckia hirta): These bright yellow flowers with dark centers are highly attractive to Eastern Tiger Swallowtails and many other butterfly species.

Swamp Milkweed (Asclepias incarnata): This native milkweed species, as the name suggests, thrives in moist areas and produces clusters of pink flowers that are a favorite nectar source for Eastern Tiger Swallowtails.


Enjoy the Eastern Tiger Swallowtails Found Right Outside Your Door

Thank you for taking the time to explore the incredible world of Eastern Tiger Swallowtails with us. We hope that this glimpse into their captivating biology and remarkable behavior has sparked a sense of wonder and appreciation for these magnificent creatures. As you step outside into your own backyard, we encourage you to keep your eyes open, for it is there that you might just encounter the graceful dance of a Eastern Tiger Swallowtail.

To get up close and personal with these butterflies, visit the Dahlonega Butterfly Farm's conservatory. It's filled with several butterfly species, in an enclosed habitat, and full of fluttering friends, fabulous flora, and feel-good fun.

Embrace the excitement and joy that comes with witnessing their vibrant presence, and let it remind you of the intricate beauty that surrounds us in the natural world. Feel the freedom to keep exploring-- there are endless wonders waiting to be discovered right across your doorstep.

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